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Example: fbsql
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==============
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fbsql is more than just a simple example and is an ISQL replacement console mode program for
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both interactive and non-interactive use. fbsql uses TIBXScript as its SQL Script Engine and
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TIBExtract to extract metadata from the database. Select queries are handled by by outputing the
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query results to stdout in CSV format suitable for loading into a spreadsheet, as insert statements,
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or in a block format.
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It can be used to dump an entire database in text (SQL) format including metadata and user
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data, with binary blobs and array data encoded in a simple XML format. It can also be used
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to create a datbase from an SQL dump. This format is less compact that gbak but allows
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for metadata editing, simplifying complex metadata changes where there are many nested
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dependencies to resolve.
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Usage: fbsql <options> <database name>
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Options:
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-a write database metadata to stdout
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-A write database metadata and table data to stdout
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-b stop on first error
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-e echo sql statements to stdout
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-h show this information
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-i <filename> execute SQL script from file
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-o <filename> output to this file instead of stdout
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-p <password> provide password on command line (insecure)
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-r <rolename> open database with this rolename
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-s <sql> Execute SQL text
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-u <username> open database with this username (defaults to SYSDBA)
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Environment Variables:
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ISC_USER Login user Name
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ISC_PASSWORD Login password
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Saving the username and/or password as environment variables avoids having to enter
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them on the command line and is a more secure means of provding the password.
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If no password is provided on the command line or through the environment, then the
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user is prompted for a password to be entered securely.
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If neither an "-s" or a "-i" option is provided on the command line, then fbsql runs
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interactively.
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fbsql uses IBX in console mode. Before opening this project you should tell the Lazarus
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IDE about the ibexpressconsolemode package. All you need to do in the IDE is to select "Packages->Open Package File"
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and open ibexpressconsolemode.lpk which you can find in the ibx root directory. You should then close it again
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immediately afterwards. There is no need to install or compile it. Opening the package is sufficient for Lazarus to
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remember it.
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SQL Statements Supported
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========================
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All DML and DDL Statements are supported.
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CREATE DATABASE, DROP DATABASE, CONNECT and COMMIT are supported.
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Additionally, RECONNECT is interpreted as dropping the connection and reconnecting.
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ISQL Command Support
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====================
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SET SQL DIALECT
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SET TERM
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SET AUTODDL
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SET BAIL
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SET ECHO
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SET COUNT
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SET STATS
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SET NAMES <character set>
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SET HEADING
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SET ROWCOUNT
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SET PLAN
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SET PLAN ONLY
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QUIT
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EXIT
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Examples
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========
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To use, compile the program in the Lazarus IDE and run it from the command line. The
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above gives the command line parameters. For example:
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fbsql -a -u SYSDBA -p masterkey employee
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will write out the metadata for the local employee database to stdout (assuming
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default password).
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fbsql -A -u SYSDBA -p masterkey -o employeedump.sql employee
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will dump the employee database to a text file (employeedump.sql).
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fbsql -u SYSDBA -p masterkey -i employeedump.sql
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will recreate the database dumped in the file "employeedump.sql". Note that the "CREATE
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DATABASE" statement is at the start of this file and should be edited to identify
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the database file that is to be created. Alternatively,
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fbsql -u SYSDBA -p masterkey -i employeedump.sql new-employee.fdb
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will restore the database to the database file 'new-employee.fdb' provided that it
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has already been created as an empty database. Note that in this case, the "CREATE
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DATABASE" statement should remain commented out.
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fbsql -s "Select * From EMPLOYEE" -u SYSDBA -p masterkey employee
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will write out the contents of the EMPLOYEE table in the local employee database to stdout (assuming
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default password).
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fbsql -b -e ../scriptengine/tests/CreateCountriesTable.sql -u SYSDBA -p masterkey employee
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will run the script CreateCountriesTable.sql from the script engine test suite and apply
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it to the local employee database. Each statement will be echoed to stdout and
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processing will stop on the first error.
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Note that on Linux, to run a program from the command line that is not on the PATH,
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you need to:
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cd to the example directory "ibx/examples/fbsql"
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run the program as "./fbsql" e.g.
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./fbsql -a -u SYSDBA -p masterkey employee
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